[Tkinter] Scrollable buttons with an add/delete button

[menator01]

My attempt. Much room for improvements though. The scrollbar doesn't seem to want to work as intended.(The area between arrows should shrink with more data introduced but, doesn't). There does not appear to be any bounds on the scrolling buttons.
The scroll should stop at the button 0 and ending button but doesn't.

import tkinter as tk

class MyCanvas(tk.Canvas):
    def __init__(self, parent, *args, **kwargs):
        super().__init__(*args, **kwargs)

        self.columnconfigure(0, weight=1)
        self.rowconfigure(0, weight=1)

        self.container = tk.Frame(parent)
        self.container.grid(column=0, row=0, sticky='news')
        self.container.grid_columnconfigure(0, weight=3)

        self.canvas = tk.Canvas(self.container, bg='ivory')
        self.scrollbar = tk.Scrollbar(self.container, orient='vertical')

        self.canvas['yscrollcommand'] = self.scrollbar.set
        self.canvas['scrollregion'] = self.canvas.bbox('all')
        self.scrollbar['command'] = self.canvas.yview

        self.scrollbar.grid(column=1, row=0, sticky='ns')
        self.canvas.grid(column=0, row=0, sticky='news')

        self.frame = tk.Frame(self.canvas, bg='ivory')
        self.frame.grid(column=0, row=0, sticky='news')

        self.canvas.create_window(50, 10, window=self.frame, anchor='n')



class MyButton(tk.Button):
    def __init__(self, parent, text, col, row, command=None, *args, **kwargs):
        self.parent = parent
        super().__init__(*args, **kwargs)
        self.button = tk.Button(parent)
        self.button['text'] = text
        self.button['command'] = command
        self.button.grid(column=col, row=row, sticky='new', pady=4, padx=2)


root = tk.Tk()
root.geometry('+250+250')
canvas = MyCanvas(root)
col = 0
row = 0
for i in range(100):
    MyButton(canvas.frame, f'Button {i}', col, row)
    if col >= 4:
        row += 1
        col = 0
    else:
        col += 1
root.mainloop()